当我执行此代码时，我收到一条错误消息“PHP致命错误：在非对象上调用成员函数Execute（）”。导致此错误的行是第96行：$ ok = $ DB-＆gt;执行（$ sql，$ aWhereParams）;我试图解决这个问题，但我没有成功。可能代码不返回对象？如何捕获此错误或我的代码有问题？请帮忙。谢谢！
SykWitIt
<?php
include_once 'config.php';
include_once('/apps/geoservices/apps/geoservices2.4/config/settings.php');
include_once('/apps/geoservices/apps/geoservices2.4/htdocs/utils.php');
if ($argc < 2)
{
echo "Usage: php daemon.php <samba share>\n";
exit(1);
}
elseif (is_dir($argv[1]))
{
global $base;
$base = $argv[1];
// Dir_walk recursively walks to the root directory and all the subdirectory's
dir_walk('handleFile', $argv[1], array('xml'), true, '', $argv[1]);
}
else
{
echo "The parameter given for the samba share is not a directory.\n";
exit(1);
}
function handleFile($base, $dir, $filehandle)
{
//Get the application name
$application_name = substr($dir, 0, -1);
$application_name = strtolower(str_replace('\\', '_', $application_name)."_".substr($filehandle, 0, strrpos($filehandle, '.')));
// Set the parameters needed to insert the WMC into the database
$aWhereParams = array();
$file = $base.$dir.$filehandle;
$aWhereParams['appname'] = strtolower($application_name);
$aWhereParams['password'] = generatePassword();
$aWhereParams['wmctitle'] = null;
$aWhereParams['folder'] = null;
$aWhereParams['startwmc'] = 'Y';
$aWhereParams['userid'] = null;
$DB = createDatabaseConnection($dbconnect, $dbuser, $dbpasswd);
if ($aWhereParams['folder'] !== null)
{
// check if folder is already created
$sql = "SELECT FOLDERID FROM WMCFOLDERS WHERE FOLDERTITLE = :folder AND APPLICATION=:appname";
$ok = $DB->Execute($sql, $aWhereParams);
if ($ok)
{
$myArray = $ok->GetArray();
if (empty($myArray))
{
// insert the folder into WMCFOLDERS
createWMCDirectory($DB, $aWhereParams);
}
else
{
foreach ($myArray as $row)
{
$aWhereParams['folderid'] = $row['FOLDERID'];
}
}
}
}
else
{
$aWhereParams['folderid'] = null;
}
$folderIdValue;
if ($aWhereParams['folderid'] === null)
{
$folderIdValue = 'IS NULL';
}
else
{
$folderIdValue = '='.$aWhereParams['folderid'];
}
$titleValue;
if ($aWhereParams['wmctitle'] === null)
{
$titleValue = 'IS NULL';
}
else
{
$titleValue = '='.$DB->qstr($aWhereParams['wmctitle'], get_magic_quotes_gpc());
}
// check if there is an existing entry, if so update it
$sql = "SELECT APPLICATION FROM WMC WHERE STARTWMC=:startwmc AND APPLICATION=:appname AND FOLDERID ".$folderIdValue." AND TITLE ".$titleValue;
$ok = $DB->Execute($sql, $aWhereParams);
if ($ok)
{
$myArray = $ok->GetArray();
if (empty($myArray))
{
// we need to insert a new entry
$sql = "insert into WMC (USERID, APPLICATION, FOLDERID, TITLE, STARTWMC, WMC) values (null, :appname, :folderid, :wmctitle, :startwmc, null)";
// Combine WMC name with the password for the new entry
$aWhereParams['appname'] .= $aWhereParams['password'];
$ok = $DB->Execute($sql, $aWhereParams);
if (!$ok)
{
handleDBError($DB);
}
insertCLOB($DB, $file, $aWhereParams['appname'], $aWhereParams['folderid'] , $aWhereParams['wmctitle']);
foreach ($GLOBALS['emailadresses'] as $dienst => $emailaddress)
{
if ($dienst == $aWhereParams['appname'])
{
// Set the email properties
$to = $emailaddress;
$subject = "Nieuwe WMC toegevoegd";
$message = "Er is een nieuwe WMC toegevoegd. Je kunt deze bekijken door naar het adres ".getURL()." te gaan en in te loggen met \n";
$message .= "gebruikersnaam: ".$aWhereParams['appname'];
$message .= "wachtwoord: ".$aWhereParams['password'];
$from = "test@blabla.com";
$headers = "From:".$from;
// Combine all property's and send the email
mail($to, $subject, $message, $headers);
}
}
}
else
{
insertCLOB($DB, $file, $aWhereParams['appname'], $aWhereParams['folderid'] , $aWhereParams['wmctitle']);
foreach ($GLOBALS['emailadresses'] as $dienst => $emailaddress)
{
if ($dienst == $aWhereParams['appname'])
{
// Set the email properties
$to = $emailaddress;
$subject = "Nieuwe WMC toegevoegd";
$message = "Er is een nieuwe WMC toegevoegd. Je kunt deze bekijken door naar het adres ".getURL()." te gaan.";
$from = "test@blabla.com";
$headers = "From:".$from;
// Combine all property's and send the email
mail($to, $subject, $message, $headers);
}
}
}
}
else
{
handleDBError($DB);
}
echo "WMC '".$aWhereParams['wmctitle']."' loaded OK in folder '".$aWhereParams['folder']."'\n";
echo " for ".$aWhereParams['appname'].", $dbuser@$dbconnect\n";
}
// Generate a random password
function generatePassword()
{
$length = 8;
$password = "";
$possible = "2346789bcdfghjkmnpqrtvwxyzBCDFGHJKLMNPQRTVWXYZ";
$maxlength = strlen($possible);
if ($length > $maxlength)
$length = $maxlength;
$i = 0;
while ($i < $length)
{
$char = substr($possible, mt_rand(0, $maxlength-1), 1);
if (!strstr($password, $char))
{
$password .= $char;
$i++;
}
}
return $password;
}
function getURL()
{
//This will be URL
return gethostname()."/apps/geoservices/";
}
function dir_walk($callback, $dir, $types = null, $recursive = false, $baseDir = '', $base)
{
if ($dh = opendir($dir)) {
while (($file = readdir($dh)) !== false)
{
if ($file === '.' || $file === '..')
{
continue;
}
if (is_file($dir . $file))
{
if (is_array($types))
{
if (!in_array(strtolower(pathinfo($dir . $file, PATHINFO_EXTENSION)), $types, true))
{
continue;
}
}
$callback($base, $baseDir, $file);
}
elseif($recursive && is_dir($dir . $file))
{
dir_walk($callback, $dir . $file . DIRECTORY_SEPARATOR, $types, $recursive, $baseDir . $file . DIRECTORY_SEPARATOR, $base);
}
}
closedir($dh);
}
}
?>
This the function that creates an Oracle database connection given a connect string, user and pwd
function createDatabaseConnection($dbconnect, $dbuser, $dbpasswd)
{
// we need adodb
require_once('/usr/share/php/adodb/adodb.inc.php');
// make sure that the OCI extension is loaded
$szOCIModule = "php_oci8";
if (!extension_loaded("oci8"))
dl($szOCIModule . "." . PHP_SHLIB_SUFFIX);
$DB = NewADOConnection('oci8');
$DB->PConnect($dbconnect, $dbuser, $dbpasswd);
if (!$DB) return false;
if (!$DB->IsConnected()) return false;
return $DB;
}
My other script works fine, the same DBConnection. The main difference is that in the script(with the error) i use function handleFile with some extra params. The code is here:
<?php
include_once 'config.php';
include_once('/apps/geoservices/apps/geoservices2.4/config/settings.php');
include_once('/apps/geoservices/apps/geoservices2.4/htdocs/utils.php');
if ($argc < 2)
{
echo "Usage: php daemon.php <samba share>\n";
exit(1);
}
elseif (is_dir($argv[1]))
{
global $base;
$base = $argv[1];
// Dir_walk recursively walks to the root directory and all the subdirectory's
dir_walk('handleFile', $argv[1], array('xml'), true, '', $argv[1]);
}
else
{
echo "The parameter given for the samba share is not a directory.\n";
exit(1);
}
function handleFile($base, $dir, $filehandle)
{
//Get the application name
$application_name = substr($dir, 0, -1);
$application_name = strtolower(str_replace('\\', '_', $application_name)."_".substr($filehandle, 0, strrpos($filehandle, '.')));
// Set the parameters needed to insert the WMC into the database
$aWhereParams = array();
$file = $base.$dir.$filehandle;
$aWhereParams['appname'] = strtolower($application_name);
$aWhereParams['password'] = generatePassword();
$aWhereParams['wmctitle'] = null;
$aWhereParams['folder'] = null;
$aWhereParams['startwmc'] = 'Y';
$aWhereParams['userid'] = null;
$DB = createDatabaseConnection($dbconnect, $dbuser, $dbpasswd);
if ($aWhereParams['folder'] !== null)
{
// check if folder is already created
$sql = "SELECT FOLDERID FROM WMCFOLDERS WHERE FOLDERTITLE = :folder AND APPLICATION=:appname";
$ok = $DB->Execute($sql, $aWhereParams);
if ($ok)
{
$myArray = $ok->GetArray();
if (empty($myArray))
{
// insert the folder into WMCFOLDERS
createWMCDirectory($DB, $aWhereParams);
}
else
{
foreach ($myArray as $row)
{
$aWhereParams['folderid'] = $row['FOLDERID'];
}
}
}
}
else
{
$aWhereParams['folderid'] = null;
}
$folderIdValue;
if ($aWhereParams['folderid'] === null)
{
$folderIdValue = 'IS NULL';
}
else
{
$folderIdValue = '='.$aWhereParams['folderid'];
}
$titleValue;
if ($aWhereParams['wmctitle'] === null)
{
$titleValue = 'IS NULL';
}
else
{
$titleValue = '='.$DB->qstr($aWhereParams['wmctitle'], get_magic_quotes_gpc());
}
// check if there is an existing entry, if so update it
$sql = "SELECT APPLICATION FROM WMC WHERE STARTWMC=:startwmc AND APPLICATION=:appname AND FOLDERID ".$folderIdValue." AND TITLE ".$titleValue;
$ok = $DB->Execute($sql, $aWhereParams);
if ($ok)
{
$myArray = $ok->GetArray();
if (empty($myArray))
{
// we need to insert a new entry
$sql = "insert into WMC (USERID, APPLICATION, FOLDERID, TITLE, STARTWMC, WMC) values (null, :appname, :folderid, :wmctitle, :startwmc, null)";
// Combine WMC name with the password for the new entry
$aWhereParams['appname'] .= $aWhereParams['password'];
$ok = $DB->Execute($sql, $aWhereParams);
if (!$ok)
{
handleDBError($DB);
}
insertCLOB($DB, $file, $aWhereParams['appname'], $aWhereParams['folderid'] , $aWhereParams['wmctitle']);
foreach ($GLOBALS['emailadresses'] as $dienst => $emailaddress)
{
if ($dienst == $aWhereParams['appname'])
{
// Set the email properties
$to = $emailaddress;
$subject = "Nieuwe WMC toegevoegd";
$message = "Er is een nieuwe WMC toegevoegd. Je kunt deze bekijken door naar het adres ".getURL()." te gaan en in te loggen met \n";
$message .= "gebruikersnaam: ".$aWhereParams['appname'];
$message .= "wachtwoord: ".$aWhereParams['password'];
$from = "test@blabla.com";
$headers = "From:".$from;
// Combine all property's and send the email
mail($to, $subject, $message, $headers);
}
}
}
else
{
insertCLOB($DB, $file, $aWhereParams['appname'], $aWhereParams['folderid'] , $aWhereParams['wmctitle']);
foreach ($GLOBALS['emailadresses'] as $dienst => $emailaddress)
{
if ($dienst == $aWhereParams['appname'])
{
// Set the email properties
$to = $emailaddress;
$subject = "Nieuwe WMC toegevoegd";
$message = "Er is een nieuwe WMC toegevoegd. Je kunt deze bekijken door naar het adres ".getURL()." te gaan.";
$from = "test@blabla.com";
$headers = "From:".$from;
// Combine all property's and send the email
mail($to, $subject, $message, $headers);
}
}
}
}
else
{
handleDBError($DB);
}
echo "WMC '".$aWhereParams['wmctitle']."' loaded OK in folder '".$aWhereParams['folder']."'\n";
echo " for ".$aWhereParams['appname'].", $dbuser@$dbconnect\n";
}
// Generate a random password
function generatePassword()
{
$length = 8;
$password = "";
$possible = "2346789bcdfghjkmnpqrtvwxyzBCDFGHJKLMNPQRTVWXYZ";
$maxlength = strlen($possible);
if ($length > $maxlength)
$length = $maxlength;
$i = 0;
while ($i < $length)
{
$char = substr($possible, mt_rand(0, $maxlength-1), 1);
if (!strstr($password, $char))
{
$password .= $char;
$i++;
}
}
return $password;
}
function getURL()
{
//This will be URL
return gethostname()."/apps/geoservices/";
}
function dir_walk($callback, $dir, $types = null, $recursive = false, $baseDir = '', $base)
{
if ($dh = opendir($dir)) {
while (($file = readdir($dh)) !== false)
{
if ($file === '.' || $file === '..')
{
continue;
}
if (is_file($dir . $file))
{
if (is_array($types))
{
if (!in_array(strtolower(pathinfo($dir . $file, PATHINFO_EXTENSION)), $types, true))
{
continue;
}
}
$callback($base, $baseDir, $file);
}
elseif($recursive && is_dir($dir . $file))
{
dir_walk($callback, $dir . $file . DIRECTORY_SEPARATOR, $types, $recursive, $baseDir . $file . DIRECTORY_SEPARATOR, $base);
}
}
closedir($dh);
}
}
?>
答案 0 :(得分：1)
从函数中可以看出，它最有可能返回false。
如果您在var_dump($DB)
$DB = createDatabaseConnection(...);会发生什么情况
答案 1 :(得分：1)
如其他地方所述，您的 createDatabaseConnection 无法返回对象，可能是因为它通常会失败。您应该做的第一件事是查看该函数和可能返回的对象 - 尤其是在连接到数据库失败的情况下。在没有看到函数的情况下，它的返回状态不清楚，但它可能足以确保$ DB不是NULL（编辑：从你现在发布的代码中你应该检查它是否为假）< / p>
作为一般检查，您可以使用is_object检查您是否有对象。